@trip17 - Very interesting to see That you may have a vascular problem causing the pain. There would be a possible way to cure you.
It reminds me of my abdominal pain caused by decreased blood supply to the intestines after meals. There was a large ligament pressing on the celiac artery. The ligament was cut and blood flow restored. A few months later I needed a stent to keep the vessel open. This condition is called Median Arcuate Ligament Syndrome—MALS.
The pain I had and what you experienced during your heart test is called abdominal angina. Insufficient blood supply.
Your next vascular test will show where the problem is.
Please get back to us about the outcome.